Synthesis of 3beta,3beta,5-tribromoacetyI-4-hydroxy-6-methyl-2H-pyran-2-one by Bromination of Dehydroacetic Acid

Ajay Kumar; Richa Prakash; Shiv P.Singh

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Synthesis of 3beta,3beta,5-tribromoacetyI-4-hydroxy-6-methyl-2H-pyran-2-one by Bromination of Dehydroacetic Acid

机译：脱氢乙酸溴化反应合成3beta，3beta，5-三溴乙酰基-1--4-羟基-6-甲基-2H-吡喃-2-酮

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Bromination of dehydroacetic acid giving rise to 3beta,3beta,5-tribromoacetyl-4-hydroxy-6-methyl-2H-pyran-2-one is described.3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one (Dehydroacetic acid,DHA,1) and its derivatives find wider application in the synthesis of heterocyclic compounds,and the area has been reviewed by us.As part of our ongoing studies on the chemistry of DHA,we are now interested in the synthesis of some novel heterocycles from the reactions of 5-bromodehydroa-cetic acid (5-BrDHA,2) with appropriate substrates.

机译：描述了脱氢乙酸的溴化，产生3β，3β，5-三溴乙酰基-4-羟基-6-甲基-2H-吡喃-2-酮。3-乙酰基-4-羟基-6-甲基-2H-吡喃-2 -一种（脱氢乙酸，DHA，1）及其衍生物在杂环化合物的合成中得到更广泛的应用，这一领域已由我们进行了审查。作为我们正在进行的DHA化学研究的一部分，我们现在对5-溴代氢乙酸（5-BrDHA，2）与适当底物的反应合成一些新的杂环。

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《Synthetic Communications》 |2005年第3期|共4页
作者
Ajay Kumar; Richa Prakash; Shiv P.Singh;
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正文语种 eng
中图分类有机化学;
关键词
Dehydroacetic acid; bromination; tribromodehydroacetic acid;

机译：脱氢乙酸;溴化;三溴代氢乙酸;

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1. Synthesis of 3beta,3beta,5-tribromoacetyI-4-hydroxy-6-methyl-2H-pyran-2-one by Bromination of Dehydroacetic Acid [J] . Ajay Kumar, Richa Prakash, Shiv P.Singh Synthetic Communications . 2005,第3期

机译：脱氢乙酸溴化反应合成3beta，3beta，5-三溴乙酰基-1--4-羟基-6-甲基-2H-吡喃-2-酮
2. Chemical synthesis of the 3-sulfooxy-7-N-acetylglucosaminyl-24-amidated conjugates of 3beta,7beta-dihydroxy-5-cholen-24-oic acid, and related compounds: unusual, major metabolites of bile acid in a patient with Niemann-Pick disease type C1. [J] . Iida T, Kakiyama G, Hibiya Y, Steroids: An International Journal . 2006,第1期

机译：3beta，7beta-dihydroxy-5-cholen-24-oic acid和相关化合物的3-磺氧基-7-N-乙酰氨基葡萄糖氨基-24酰胺化缀合物的化学合成：尼曼患者胆汁酸的异常主要代谢产物-拾取性疾病C1型。
3. Influence of the solvent ability to form hydrogen bonds in the crystal structure of ((3beta,5beta,7alpha,12alpha)-3((norbornyl-2-acetyl)-amino)-7,12-dihydroxycholan- 24-oic acid (a norbornyl derivative of cholic acid). [J] . Miragaya J, Jover A, Fraga F Steroids: An International Journal . 2009,第9期

机译：溶剂形成（（3beta，5beta，7alpha，12alpha）-3（（norbornyl-2-acetyl）-amino）-7,12-dihydroxycholan- 24-oic acid（a）晶体结构中氢键的能力的影响胆酸的降冰片基衍生物）。
4. Reactivity of Bromine-Substituted Haloamines in Forming Haloacetic Acids [C] . ACS Division of Environmental Chemistry national meeing . 2008

机译：溴 - 取代卤胺在形成卤乙酸中的反应性
5. The synthesis and reactivity of allylic alcohols and their derivatives: The synthesis of (Z)-3beta,16alpha-dihydroxy-5,17(20)-pregnadiene 3-pivaloate; the Mitsunobu reaction of 2-cyclohexenols; the europium(III) -catalyzed rearrangement of allylic methoxyacetates. [D] . Shull, Brian Keith. 1991

机译：烯丙醇及其衍生物的合成和反应性：（Z）-3beta，16alpha-dihydroxy-5,17（20）-pregnadiene 3-pivaloate的合成； 2-环己醇的Mitsunobu反应；（（III）催化烯丙基甲氧基乙酸酯的重排。
6. Synthesis and antibacterial activities of enamine derivatives of dehydroacetic acid [O] . Alex G. Baldwin, Jonathan Bevan, David Brough, -1

机译：脱氢乙酸烯胺衍生物的合成及抑菌活性
7. Structures of Isomers of Ursodeoxycholic Acid : 3beta;, 7alpha;- and 3beta;, 7beta;-Dihydroxy-5beta;-cholan-24-oic Acids [O] . Taiichi HIGUCHI, Noboru YABE, Haruki TAKEDA 1992

机译：核糖核酸异构体的结构：3β，7α-和3β，7β-二羟基-5β-胆管-24-甲酸

Synthesis of 3beta,3beta,5-tribromoacetyI-4-hydroxy-6-methyl-2H-pyran-2-one by Bromination of Dehydroacetic Acid

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